<p>Raw milk is milk that has not been pasteurized or homogenized. Humans may consume it because they are unable or unwilling to treat it. Health food proponents tout the benefits of raw milk and the ills of pasteurization and homogenization. The medical community warns of the dangers of not pasteurizing milk. Preferences vary from region to region.
Humans consumed raw milk exclusively prior to the industrial revolution and the invention of the pasteurization process in 1864. During the industrial revolution large populations congregated into urban areas detached from the agricultural lifestyle.
Pasteurization was first used in the United States in the 1890s after the discovery of germ theory to control the hazards of highly contagious bacterial diseases including bovine tuberculosis and brucellosis that was thought to be easily transmitted to humans through the drinking of raw milk. Initially after the scientific discovery of bacteria, no product testing was available to determine if a farmer's milk was safe or infected, so all milk was treated as potentially contagious. After the first test was developed, some farmers actively worked to prevent their infected animals from being</p>